Abstract
Dens invaginatus (DI) is a developmental anomaly characterized by invagination of the enamel organ into the dental papilla before calcification of the dental tissues. The etiology of this phenomenon has been related either to focal growth retardation or focal growth stimulation, or localized external pressure in certain areas of the tooth bud. In this case of upper lateral incisor showing type 3 dense invaginatus and diagnose as necrotic pulp with chronic apical abscess and treated by nonsurgical root canal treatment during follow up patient comlaing of recurrent swelling associated with treated tooth so we did surgical approach has been employed to resolve patient chief complaint. A follow up of one year is also presented to show healing.
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